Satellite Internet Explained

Satellite internet provides broadband access via satellites orbiting the Earth rather than fixed ground cables.

It is often used in rural or remote areas where fibre or mobile broadband coverage is limited.

This guide explains how satellite broadband works, typical speeds, latency considerations, installation requirements, and cost factors.

This is general information, not personal advice.

How satellite internet delivers data

Satellite broadband passes signals between your property and a satellite orbiting the Earth. Where fibre runs through underground cables, satellite sends the data through space.

It's a long round trip: from your device to the router, out to the satellite dish, up to the satellite, down to a ground station, and on to the internet backbone, then back again. That distance builds in some latency, or delay, especially with older geostationary satellites sitting roughly 36,000 km above Earth. The delay is a function of the distance rather than a fault with the connection.

Geostationary against low Earth orbit

Two main satellite technologies are in use, and the choice between them shapes the experience. Geostationary (GEO) satellites sit in high orbit. The technology is mature and the hardware is often cheaper, but latency is high, frequently 600–700ms. Low Earth orbit (LEO) satellites sit much closer to Earth, which brings latency down sharply, typically 20–50ms, though it takes many satellites to provide coverage and the upfront equipment cost tends to be higher.

LEO has transformed satellite broadband for anything time-sensitive: video calls, gaming, real-time collaboration. Availability and installation complexity still vary by location and provider.

Speed against latency

Satellite can deliver strong download speeds, sometimes over 100 Mbps. Speed and responsiveness aren't the same thing, though. High latency shows up in competitive gaming, cloud-based work systems, VPN connections and remote desktop. For general browsing and streaming, satellite is usually fine; for a business running real-time systems, latency matters more than the headline speed.

Installation

Satellite needs physical kit installed. That usually means a dish mounted outside with a clear line of sight to the sky, professional installation, cabling run into the property, and a power source for the equipment. Trees, buildings and hills in the way can interfere with the signal. Unlike mobile broadband, this is fixed hardware rather than a plug-in router.

Costs and data

Satellite often costs more than fibre or 5G, because the infrastructure is expensive, the equipment is specialised and the market is smaller. You may face an installation fee, equipment to buy or rent, a higher monthly subscription, and on some packages a data cap. Some providers offer unlimited data but apply fair use traffic management at peak times.

When satellite is the right choice

Satellite tends to suit remote rural homes, farms, areas with no fibre or reliable mobile coverage, and temporary connectivity on remote projects. It's generally the option you reach for when nothing else is available. In places without fibre or strong 4G/5G it can change what's possible, but it's rarely the cheapest way to get online.